4.3L LV3 Ecotec3 Gen 5 Camshaft Install Rebuild Kit | AFM Style Roller Camshaft | 4 AFM Style Lifters & 8 Roller Lifters | Gasket Kit | Bolts | FITS: 2015+ Chevy GMC 4.3L V6 LV3 Silverado Sierra

Restore your engine's power and quiet operation with a kit built for long-term mechanical integrity. This LV3 AFM Repair Kit addresses the notorious "lifter tick" and camshaft lobe wear that plague the 4.3L EcoTec3 engine. We have curated this package to focus on extreme durability, featuring a High-Performance AFM Camshaft and a complete set of 12 Premium Lifters (4 switching AFM lifters and 8 standard rollers). These components are precision-engineered to meet or exceed the performance of factory hardware, ensuring your Active Fuel Management system operates smoothly and reliably for miles to come. The foundation of any successful top-end rebuild is the seal, which is why we include 100% USA-Made Elgin Industries Head Bolts and a Multi-Layer Steel (MLS) Head Gasket Set. Unlike standard composite gaskets that can degrade under high heat, our MLS gaskets act like a "spring," maintaining a rigid, high-pressure seal even as your aluminum heads and block expand and contract. By using American-manufactured fasteners that meet strict torque-to-yield specifications, this kit provides the superior clamping force necessary to prevent future combustion leaks or head gasket blowouts. Choosing this kit means investing in a "fix-it-once" solution that balances elite American craftsmanship with high-value mechanical components. Whether you are a fleet owner maintaining work trucks or a DIYer looking to save your daily driver from a total engine swap, this kit eliminates the risks of "white box" import parts. You are getting a synchronized valvetrain refresh that restores factory fuel efficiency and idle quality, backed by the strength of USA-made hardware that is built to handle the heavy-duty demands of the Chevy and GMC truck platforms.

• LIFETIME WARRANTY IF INSTALLED BY A CERTIFIED MACHINIST.
• PREMIUM HIGH-QUALITY AFM CAMSHAFT: Features a precision-ground aftermarket camshaft tailored for the 4.3L LV3. Manufactured with hardened lobes to withstand the high-cycle demands of the Active Fuel Management system.
• 12-PIECE HYBRID LIFTER SET: Includes 4 specialized AFM switching lifters and 8 standard roller lifters. These high-quality units are engineered for quiet operation and consistent performance during cylinder deactivation.
• 100% USA-MADE ELGIN HEAD BOLTS: Every head bolt in this kit is proudly manufactured by Elgin Industries in the USA. These high-tensile fasteners ensure the exact torque-to-yield seating required for Gen V aluminum blocks.
• HEAVY-DUTY MLS GASKET TECHNOLOGY: The Upper Head Gasket Set utilizes Multi-Layer Steel (MLS) construction. This design offers superior thermal resistance and a high-pressure seal, making it nearly impervious to the heat-related failures common in standard gaskets.
• VERIFIED 4.3L LV3 FITMENT: Precision-tailored for the 4.3L EcoTec3 engine (VIN code H) found in 2014-2021 Silverado and Sierra 1500 models.
• ELIMINATES VALVETRAIN NOISE: This complete mechanical refresh is designed to resolve internal ticking and misfires, restoring your engine to smooth, factory-quiet operation.
• COMPLETE TOP-END REFRESH: Provides the primary gaskets, fasteners, and internal valvetrain components needed for a professional-grade overhaul in one comprehensive package.